Nuclear waste burner for minor actinides elimination

2005 ◽  
Vol 47 (1-4) ◽  
pp. 339-346 ◽  
Author(s):  
A. Zrodnikov ◽  
A. Gulevich ◽  
V. Chekounov ◽  
A. Dedoul ◽  
N. Novikova ◽  
...  
Keyword(s):  
Nuclear Waste ◽  
Minor Actinides

Fabrication of 239/238Pu-Zirconolite Ceramic Pellets by Natural Sintering

2003 ◽  
Vol 807 ◽  
Author(s):  
T. Advocat ◽  
F. Jorion ◽  
T. Marcillat ◽  
G. Leturcq ◽  
X. Deschanels ◽  
...  
Keyword(s):  
Grain Size ◽  
Radioactive Waste ◽  
Nuclear Waste ◽  
Chemical Stability ◽  
Minor Actinides ◽  
Loading Capacity ◽  
X Ray Diffraction ◽  
X Ray ◽  
Physical And Chemical ◽  
Inorganic Matrix

ABSTRACTZirconolite is a potential inorganic matrix that is currently investigated in France, in the framework of the 1991 radioactive waste management law, with a view to provide durable containment of the trivalent and tetravalent minor actinides like neptunium, curium, americium and small quantities of unrecyclable plutonium separated from other nuclear waste. To confirm the actinide loading capacity of the zirconolite calcium site and to study the physical and chemical stability of this type of ceramic when subjected to alpha self-irradiation, zirconolite ceramic pellets were fabricated with 10 wt% plutonium oxide (isotope 239 or 238). The 55 pellets are dense (> 93.3% of the theoretical density on average) and free of cracks. They are characterized by a grain size of between 10 and 20 micrometers. X-ray diffraction analyses confirmed the presence of the zirconolite 2M crystalline structure.

scholarly journals THE TRANSMUTATION MODELING FOR PLUTONIUM AND MINOR ACTINIDES IN THE TWO-ZONE SUBCRITICAL REACTOR

2019 ◽  
pp. 83-87
Author(s):  
V.I. Gulik ◽  
D.O. Sheliahovskyi ◽  
A.V. Nosovskyi
Keyword(s):  
Nuclear Waste ◽  
Reaction Rates ◽  
Fast Neutrons ◽  
Minor Actinides ◽  
Capture Reaction ◽  
Thermal And Fast Neutrons ◽  
Subcritical System ◽  
Subcritical Reactor

The investigations directed to plutonium and minor actinides transmutations for two-zone subcritical reactor is considered in present paper. The distributions of thermal and fast neutrons in the subcritical system were obtained. The distributions of fission and capture reaction rates for 237Np and 243Am were analyzed from viewpoint of minor actinides transmutation. The transmutation simulations for different distributions of pin targets were carried out within the scope of this paper. The obtained modeling results for different nuclear waste isotopes were analyzed and discussed.

scholarly journals Main Results of the French Program on Partitioning of Minor Actinides, a Significant Improvement Towards Nuclear Waste Reduction

2012 ◽  
Vol 7 ◽  
pp. 358-366 ◽  
Author(s):  
Christophe Poinssot ◽  
Christine Rostaing ◽  
Pascal Baron ◽  
Dominique Warin ◽  
Bernard Boullis
Keyword(s):  
Nuclear Waste ◽  
Waste Reduction ◽  
Minor Actinides
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